As Russian forces pushed toward Kyiv, they stormed an apartment complex in a nearby suburb and held residents hostage. Some of it was caught on camera.
More than 40 marines were killed, an official said, but there were signs the toll could much be higher. At the Mykolaiv morgue, dozens of bodies were laid out in a storage area.
Ukraine said it had temporarily lost contact with officials in the strategic port city of Mariupol, and a Russian rocket attack on a military site in Mykolaiv left dozens dead.